How do you factor y=x^3-x^2-4x+4 ?
1 Answer
Dec 13, 2015
y= (x-2)(x+2)(x-1)
Explanation:
Set the equation equal to zero
Group
Factor the greatest common from each group
=>x^2(x-1) -4(x-1)= y
Factor out the greatest common factor from the expression
=>(x^2-4)(x-1) = y
Factor the difference of square
=>(x-2)(x+2)(x-1)= y